US 11,718,027 B2
Device and method for producing three-dimensional workpieces
Toni Adam Krol, Lübeck (DE); Gesa Rolink, Lübeck (DE); Bodo Haack, Lübeck (DE); and Birk Hoppe, Lübeck (DE)
Assigned to SLM SOLUTIONS GROUP AG, Lübeck (DE)
Filed by SLM Solutions Group AG, Lübeck (DE)
Filed on Jan. 14, 2022, as Appl. No. 17/575,822.
Application 17/575,822 is a continuation of application No. 16/495,958, granted, now 11,247,390, previously published as PCT/EP2018/055770, filed on Mar. 8, 2018.
Claims priority of application No. 10 2017 205 027.6 (DE), filed on Mar. 24, 2017.
Prior Publication US 2022/0134646 A1, May 5, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 64/232 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B33Y 50/02 (2015.01); B29C 64/153 (2017.01); B29C 64/393 (2017.01); B29C 64/371 (2017.01); B28B 1/00 (2006.01); B28B 17/00 (2006.01); B22F 10/28 (2021.01); B22F 12/00 (2021.01); B22F 12/70 (2021.01); B22F 12/86 (2021.01); B22F 10/322 (2021.01); B22F 12/41 (2021.01); B22F 12/44 (2021.01); B22F 12/49 (2021.01); B22F 10/32 (2021.01)
CPC B29C 64/232 (2017.08) [B22F 10/28 (2021.01); B22F 10/322 (2021.01); B22F 12/222 (2021.01); B22F 12/224 (2021.01); B22F 12/38 (2021.01); B22F 12/70 (2021.01); B22F 12/86 (2021.01); B28B 1/001 (2013.01); B28B 17/0081 (2013.01); B29C 64/153 (2017.08); B29C 64/371 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); B22F 10/32 (2021.01); B22F 12/41 (2021.01); B22F 12/44 (2021.01); B22F 12/49 (2021.01)] 12 Claims
OG exemplary drawing
 
1. A device for producing three-dimensional workpieces, comprising:
a carrier for receiving raw material powder,
a build chamber wall which extends substantially vertically and which is adapted to laterally delimit and support the raw material powder applied to the carrier,
an irradiation unit for selectively irradiating the raw material powder applied to the carrier with electromagnetic radiation or particle radiation in order to produce on the carrier a workpiece manufactured from the raw material powder by an additive layer building method, wherein the irradiation unit comprises at least one optical element,
a vertical movement device which is adapted to move the irradiation unit vertically with respect to the carrier, wherein the build chamber wall and the carrier are adapted to be connected to one another in a stationary manner during the vertical movement of the irradiation unit so that the vertical movement takes place relative to the carrier and relative to the build chamber wall,
a horizontal movement device which is adapted to move the irradiation unit horizontally with respect to the carrier and with respect to the raw material powder applied to the carrier, and
a plurality of build chambers arranged side by side, each of which has a build chamber wall which laterally surrounds the respective build chamber, and a carrier,
wherein the horizontal movement device is adapted to move the irradiation unit from a first build chamber of the plurality of build chambers to a second build chamber of the plurality of build chambers.